I can only adjust what you’ve posted using the information you’ve given me. If it’s not working then I suggest looking that the documentation I linked to above. Other than the query arguments, there’s not much more I can give you.
the only other thing that I can suggest is to change the variable name for you query.
$wp_query = new WP_Query( $args ); You should not use $wp_query because it will override the main query. Change it to anything else like $my_query or $related_query or just $query.
